Ultimate space simulation software

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by midtskogen
08 Jul 2019 22:31
Forum: Feedback and Suggestions
Topic: What is your display resolution?
Replies: 25
Views: 1312

What is your display resolution?

30500 I wonder who chose "unimaginably large (8k, (only one 8k monitor released, and that was 2 years ago, even today it costs $3,900) 10k, (only one 10k tv ever made and never sold, demonstrated 4 years ago. a person from the same province as stellarator tested fortnite on 10k ultrawide about...
by midtskogen
06 Jul 2019 12:53
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 376
Views: 70996

Show off your work

Since it's the bright season, I hadn't bothered to check the meteor detections in a few weeks, but there were a few detections, mostly by our southernmost camera at 58N.  Here's one against a backdrop of noctilucent clouds that appeared 2019-06-28 01:14 local time (close to geographic midnight).  It...
by midtskogen
24 Jun 2019 13:25
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 658
Views: 83775

Science and Astronomy News

Yes, many UFO videos with apparently oddly moving objects are clearly due to parallax effects, shaking camera or misinterpretation of distance and size.  Granted, it may not always be immediately obvious, but when the possibility is pointed out, there can be no doubt.
by midtskogen
24 Jun 2019 03:04
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 376
Views: 70996

Show off your work

Noctilucent clouds over Oslo last night.  Not very bright, but visible even in the southern sky.

by midtskogen
13 Jun 2019 04:32
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 658
Views: 83775

Science and Astronomy News

Norway's national broadcaster ran a story yesterday on a possible (presented as likely)  meteorite impact in Norway  discovered on 11 June.  The image, however, doesn't make it very credible.  It seems to be a common misconception that meteorites hit the ground as flaming objects exploding in a big ...
by midtskogen
07 Jun 2019 04:17
Forum: Off-topic Discussions
Topic: Sci-Fi (and other genre) Movies & TV Series
Replies: 30
Views: 7120

Sci-Fi (and other genre) Movies & TV Series

Worst sci-fi plot ever? (Not to mention worst understanding of how gravity works)

by midtskogen
05 Jun 2019 05:01
Forum: Science and Astronomy Discussions
Topic: Light pollution
Replies: 20
Views: 898

Light pollution

29283 To reduce breast cancer risks from light pollution, Prevention magazine recommends nine hours of sleep nightly in a dark room devoid of both interior (computer screens) and exterior (street lamps) light sources. A study of 12,000 Finnish women found that those who slept nine hours nightly had...
by midtskogen
28 May 2019 21:43
Forum: Science and Astronomy Discussions
Topic: Light pollution
Replies: 20
Views: 898

Light pollution

My point was that when satellites are in sunlight (and the ground below is dark), the sunlight falls at the surface facing Earth at a shallow angle, so the heating problem is less if the albedo for that surface is reduced.

Scott Manley just covered this topic.

by midtskogen
28 May 2019 00:34
Forum: Science and Astronomy Discussions
Topic: Light pollution
Replies: 20
Views: 898

Light pollution

But, it's really only one side of the satellite that needs to be near invisible in visible light, the side that receives the least sunlight as the Earth is blocking in that direction.  So how bad can it be?  I think most satellites have the same side facing the Earth.  In some cases when this doesn'...
by midtskogen
26 May 2019 23:48
Forum: Science and Astronomy Discussions
Topic: Light pollution
Replies: 20
Views: 898

Light pollution

I don't think we have a separate thread for light pollution. Let me start with an issue which is perhaps not so often considered light pollution, but it should be, in particular these days when SpaceX has begun rolling out its broadband satellites.  Namely: satellites.  Perhaps a curiosity for many ...
by midtskogen
26 May 2019 23:27
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 376
Views: 70996

Show off your work

Good idea, I'll add it do my list of very interesting this to do when I get the time.  I have 12 years of data, I think.  I could plot every 7.5+M in that time, for instance, and order by distance.
by midtskogen
26 May 2019 05:57
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 376
Views: 70996

Show off your work

Today's quake in Peru as recorded 10340 km away in my basement. USGS says M8.0, Peruvian authorities say M7.2.  I think the former is more correct.  The quake briefly maxed out my instrument.  The P-wave is realtively weak, having just cleared Earth's core.

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by midtskogen
15 May 2019 00:44
Forum: Science and Astronomy Discussions
Topic: Upcoming Astronomy & Science Events - and YOU
Replies: 8
Views: 1239

Upcoming Astronomy & Science Events - and YOU

Perhaps.  It's fairly safe to assume that devastating impacts are very unlikely to happen over densely populated areas, but Chelyabinsk, while not particularly destructive, shows that there is a real risk.  Chelyabinsk doesn't show well how powerful such impacts can be, though.  A ten kilometer wide...
by midtskogen
12 May 2019 01:28
Forum: Off-topic Discussions
Topic: General global warming / climate change discussion
Replies: 203
Views: 32834

General global warming / climate change discussion

I read  an interesting article concerning sea level rise  today.  In Norwegian, sorry.  It's known that if the Greenland ice sheet completely melts, the global sea level will rise by about 7 meters.  But in reality it's a bit complex.  Perhaps counter intuitive, as the ice sheet melts, the sea level...
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